Finding the Fourth Proportional to 1,221,006.94, 1,684,989.57 and 677,225.99
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Solution
The fourth proportional to 1,221,006.94, 1,684,989.57 and 677,225.99 is: 934,571.87
Step by Step Solution
- Step 1: Write the proportion equation
1,221,006.94 : 1,684,989.57 = 677,225.99 : x - Step 2: Convert to fraction form
1,221,006.94/1,684,989.57 = 677,225.99/x - Step 3: Cross multiply
1,221,006.94x = 1,684,989.57 × 677,225.99 - Step 4: Simplify right side
1,221,006.94x = 1,141,118,736,435.00 - Step 5: Solve for x
x = 1,141,118,736,435.00/1,221,006.94 - Step 6: Final answer
x = 934,571.87
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.